You can only import or sweep single private keys. So you can't sweep 2 private keys (that were used in a 2of2 MultiSig) into Electrum and expect that the contents of the MultiSig address will be sent to Electrum. It will tell you there are no inputs found, as it will attempt to sweep the contents of each key/address separately... not the combined MultiSig Address.
privKey1 = Address1 = 0 BTC
privKey2 = Address2 = 0 BTC
privKey1+privKey2 = MultiSigAddress1 = 1 BTC
If you sweep privKey1, you'll get 0 BTC
If you sweep privKey2, you'll get 0 BTC
You cannot sweep "privKey1+privKey2" or MultiSigAddress1... you'd have to recreate the MultiSig in Electrum using privKey1 and privKey2... which should recreate MultiSigAddress1... you could then send the 1BTC where you wanted in a normal transaction.
Alternatively, if the idea was to be able to recover without the wallet, maybe you could do it manually by creating a transaction (maybe using
https://coinb.in) using the appropriate redeem script, and the 2 private keys to sign the transaction. Put in an appropriate output address etc and broadcast the transaction...